/* EDTECNO Design System - CSS Variables */
:root {
  /* Base Colors */
  --background: hsl(0, 0%, 98.5%);
  --foreground: hsl(225, 15%, 20%);

  /* Card System */
  --card: hsl(0, 0%, 100%);
  --card-foreground: hsl(225, 15%, 20%);

  /* Primary Brand - Blue to Purple Gradient */
  --primary: hsl(235, 85%, 65%);
  --primary-foreground: hsl(0, 0%, 100%);
  --primary-light: hsl(245, 85%, 70%);
  --primary-dark: hsl(260, 65%, 55%);

  /* Secondary */
  --secondary: hsl(215, 25%, 95%);
  --secondary-foreground: hsl(225, 15%, 20%);

  /* Success Green */
  --success: hsl(120, 65%, 50%);
  --success-foreground: hsl(0, 0%, 100%);

  /* Muted */
  --muted: hsl(215, 20%, 96%);
  --muted-foreground: hsl(215, 15%, 50%);

  /* Borders & Inputs */
  --border: hsl(215, 20%, 88%);
  --input: hsl(215, 20%, 88%);

  /* Brand Gradients */
  --gradient-primary: linear-gradient(135deg, hsl(235, 85%, 65%), hsl(260, 65%, 55%));
  --gradient-hero: linear-gradient(135deg, hsl(235, 85%, 65%) 0%, hsl(260, 65%, 55%) 100%);
  --gradient-card: linear-gradient(145deg, hsl(0, 0%, 100%, 0.9), hsl(215, 25%, 98%, 0.8));

  /* Shadows */
  --shadow-soft: 0 4px 20px hsl(215, 25%, 80%, 0.15);
  --shadow-medium: 0 8px 30px hsl(215, 25%, 70%, 0.2);
  --shadow-strong: 0 12px 40px hsl(215, 25%, 60%, 0.25);
  --shadow-glow: 0 0 30px hsl(235, 85%, 65%, 0.3);

  /* Glass Effect */
  --glass-bg: hsl(0, 0%, 100%, 0.8);
  --glass-border: hsl(215, 20%, 88%, 0.3);

  /* Animations */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', system-ui, sans-serif;
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  font-family: -apple-system, BlinkMacSystemFont, 'Poppins', 'Segoe UI', system-ui, sans-serif;
  font-weight: 700;
  line-height: 1.2;
  text-rendering: optimizeLegibility;
}

/* Font optimization when fonts are loaded */
.fonts-loaded body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

.fonts-loaded h1,
.fonts-loaded h2,
.fonts-loaded h3,
.fonts-loaded h4,
.fonts-loaded h5,
.fonts-loaded h6 {
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  font-family: -apple-system, BlinkMacSystemFont, 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-weight: 500;
  font-size: 0.875rem;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--primary-foreground);
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px hsl(235, 85%, 65%, 0.4);
}

.btn-success {
  background-color: var(--success);
  color: var(--success-foreground);
}

.btn-success:hover {
  background-color: hsl(120, 65%, 45%);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border);
  color: var(--foreground);
}

.btn-outline:hover {
  background-color: var(--muted);
}

.btn-outline-white {
  background-color: transparent;
  border-color: hsl(0, 0%, 100%, 0.2);
  color: hsl(0, 0%, 100%);
}

.btn-outline-white:hover {
  background-color: hsl(0, 0%, 100%, 0.1);
}

.btn-white {
  background-color: hsl(0, 0%, 100%);
  color: var(--primary);
}

.btn-white:hover {
  background-color: hsl(0, 0%, 95%);
}

.btn-gradient {
  background: var(--gradient-primary);
  color: var(--primary-foreground);
  box-shadow: var(--shadow-glow);
}

.btn-gradient:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px hsl(235, 85%, 65%, 0.4);
}

/* Icons */
.icon, .icon-sm, .icon-lg, .icon-xl {
  width: 1rem;
  height: 1rem;
  stroke-width: 2;
}

.icon-sm {
  width: 0.75rem;
  height: 0.75rem;
}

.icon-lg {
  width: 1.5rem;
  height: 1.5rem;
}

.icon-xl {
  width: 3rem;
  height: 3rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 500;
}

.badge-primary {
  background-color: hsl(235, 85%, 65%, 0.1);
  color: var(--primary);
  border: 1px solid hsl(235, 85%, 65%, 0.2);
}

.badge-primary-sm {
  background-color: hsl(235, 85%, 65%, 0.1);
  color: var(--primary);
  border: 1px solid hsl(235, 85%, 65%, 0.2);
  font-size: 0.625rem;
}

.badge-success {
  background-color: hsl(120, 65%, 50%, 0.1);
  color: var(--success);
  border: 1px solid hsl(120, 65%, 50%, 0.2);
}

/* Text Utilities */
.gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-primary {
  color: var(--primary);
}

.text-success {
  color: var(--success);
}

.text-yellow {
  color: hsl(45, 95%, 50%);
}

.text-link {
  color: var(--primary);
  text-decoration: none;
}

.text-link:hover {
  text-decoration: underline;
}

/* Section Headers */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin: var(--spacing-lg) 0;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--muted-foreground);
  max-width: 768px;
  margin: 0 auto;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--glass-bg);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  transition: var(--transition-smooth);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-md) 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  text-decoration: none;
  color: var(--foreground);
}

.logo-icon {
  width: 2rem;
  height: 2rem;
  border-radius: var(--radius-lg);
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.125rem;
}

.logo-text {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
}

.nav-desktop {
  display: none;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .nav-desktop {
    display: flex;
  }
}

.nav-link {
  color: var(--foreground);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-smooth);
}

.nav-link:hover {
  color: var(--primary);
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: var(--foreground);
  cursor: pointer;
}

@media (min-width: 768px) {
  .mobile-menu-btn {
    display: none;
  }
}

.nav-mobile {
  display: none;
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-md) 0;
  border-top: 1px solid var(--border);
}

.nav-mobile.active {
  display: flex;
}

.nav-link-mobile {
  color: var(--foreground);
  text-decoration: none;
  font-weight: 500;
  padding: var(--spacing-sm) 0;
}

.mobile-cta {
  margin-top: var(--spacing-md);
}

/* Hero Section */
.hero-section {
  position: relative;
  overflow: hidden;
  background: var(--gradient-hero);
  padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
  color: white;
}

.hero-bg-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, hsl(235, 85%, 65%, 0.1), hsl(260, 65%, 55%, 0.1));
}

.hero-glow {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 24rem;
  height: 24rem;
  background: hsl(235, 85%, 65%, 0.2);
  border-radius: 50%;
  filter: blur(80px);
}

.hero-grid {
  display: grid;
  gap: var(--spacing-3xl);
  align-items: center;
  position: relative;
  z-index: 10;
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.hero-content {
  text-align: center;
}

@media (min-width: 1024px) {
  .hero-content {
    text-align: left;
  }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  margin: var(--spacing-lg) 0;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: hsl(0, 0%, 100%, 0.9);
  margin-bottom: var(--spacing-xl);
  max-width: 32rem;
}

.hero-stats {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

@media (min-width: 640px) {
  .hero-stats {
    flex-direction: row;
  }
}

@media (min-width: 1024px) {
  .hero-stats {
    justify-content: flex-start;
  }
}

.hero-stat {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  color: hsl(0, 0%, 100%, 0.9);
  font-weight: 500;
}

@media (min-width: 1024px) {
  .hero-stat {
    justify-content: flex-start;
  }
}

.star-rating {
  display: flex;
  gap: 2px;
}

.star-icon {
  width: 1rem;
  height: 1rem;
  fill: hsl(45, 95%, 60%);
  color: hsl(45, 95%, 60%);
}

.hero-form {
  background-color: hsl(0, 0%, 100%, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid hsl(0, 0%, 100%, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

@media (min-width: 640px) {
  .form-row {
    flex-direction: row;
  }
}

.form-input-wrapper {
  position: relative;
  flex: 1;
}

.form-icon {
  position: absolute;
  left: var(--spacing-sm);
  top: 50%;
  transform: translateY(-50%);
  color: hsl(0, 0%, 100%, 0.6);
  width: 1.25rem;
  height: 1.25rem;
}

.form-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) 2.5rem;
  background-color: hsl(0, 0%, 100%, 0.1);
  border: 1px solid hsl(0, 0%, 100%, 0.2);
  border-radius: var(--radius-lg);
  color: white;
  font-size: 1rem;
  height: 3rem;
}

.form-input::placeholder {
  color: hsl(0, 0%, 100%, 0.6);
}

.form-input:focus {
  outline: none;
  border-color: hsl(0, 0%, 100%, 0.4);
}

.form-divider {
  text-align: center;
}

.google-btn {
  width: 100%;
  margin-bottom: var(--spacing-sm);
  border-color: hsl(0, 0%, 100%, 0.2);
  color: white;
}

.google-btn:hover {
  background-color: hsl(0, 0%, 100%, 0.1);
}

.google-icon {
  width: 1.25rem;
  height: 1.25rem;
}

.form-footer {
  color: hsl(0, 0%, 100%, 0.6);
  font-size: 0.875rem;
}

.trust-indicators {
  color: hsl(0, 0%, 100%, 0.6);
  font-size: 0.875rem;
}

.hero-image {
  position: relative;
}

.dashboard-mockup {
  position: relative;
  z-index: 10;
  background-color: hsl(0, 0%, 100%, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid hsl(0, 0%, 100%, 0.2);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xs);
  box-shadow: var(--shadow-strong);
}

.dashboard-img {
  width: 100%;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-medium);
}

.floating-element {
  position: absolute;
  padding: var(--spacing-md);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow);
  animation: float 3s ease-in-out infinite;
}

.floating-engagement {
  top: -1.5rem;
  right: -1.5rem;
  background-color: var(--success);
  color: white;
}

.floating-students {
  bottom: -1.5rem;
  left: -1.5rem;
  background-color: white;
  color: var(--primary);
}

.floating-number {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: 'Poppins', sans-serif;
}

.floating-text {
  font-size: 0.875rem;
  color: inherit;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* Benefits Section */
.benefits-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--background);
}

.benefits-grid {
  display: grid;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

@media (min-width: 768px) {
  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .benefits-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.benefit-card {
  padding: var(--spacing-lg);
  border: 1px solid hsl(215, 20%, 88%, 0.5);
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-2xl);
  transition: var(--transition-smooth);
  cursor: pointer;
}

.benefit-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-strong);
  border-color: hsl(235, 85%, 65%, 0.3);
}

.benefit-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--spacing-md);
}

.benefit-icon {
  padding: var(--spacing-sm);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
}

.gradient-blue-purple {
  background: linear-gradient(135deg, hsl(235, 85%, 65%), hsl(260, 65%, 55%));
}

.gradient-green-teal {
  background: linear-gradient(135deg, hsl(120, 65%, 50%), hsl(180, 65%, 50%));
}

.gradient-yellow-orange {
  background: linear-gradient(135deg, hsl(45, 95%, 50%), hsl(25, 95%, 55%));
}

.gradient-purple-pink {
  background: linear-gradient(135deg, hsl(260, 65%, 55%), hsl(320, 65%, 60%));
}

.gradient-indigo-blue {
  background: linear-gradient(135deg, hsl(235, 85%, 65%), hsl(215, 85%, 65%));
}

.gradient-cyan-blue {
  background: linear-gradient(135deg, hsl(180, 85%, 55%), hsl(215, 85%, 65%));
}

.benefit-title {
  font-size: 1.25rem;
  color: var(--foreground);
  margin-bottom: var(--spacing-sm);
  transition: var(--transition-smooth);
}

.benefit-card:hover .benefit-title {
  color: var(--primary);
}

.benefit-description {
  color: var(--muted-foreground);
  margin-bottom: var(--spacing-md);
}

.benefit-features {
  list-style: none;
  margin-bottom: var(--spacing-md);
}

.benefit-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.feature-dot {
  width: 0.375rem;
  height: 0.375rem;
  background: var(--gradient-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

.benefit-cta {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  color: var(--primary);
  font-weight: 500;
  font-size: 0.875rem;
  opacity: 0;
  transition: var(--transition-smooth);
}

.benefit-card:hover .benefit-cta {
  opacity: 1;
}

.benefit-cta .icon-sm {
  transition: var(--transition-smooth);
}

.benefit-card:hover .benefit-cta .icon-sm {
  transform: translateX(4px);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
  margin-top: var(--spacing-3xl);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  text-align: center;
}

.stat-number {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--primary);
  margin-bottom: var(--spacing-sm);
}

.stat-label {
  color: var(--muted-foreground);
}

/* How It Works Section */
.how-it-works-section {
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, hsl(235, 85%, 65%, 0.05), hsl(260, 65%, 55%, 0.1));
  position: relative;
  overflow: hidden;
}

.section-bg-elements {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.bg-glow-1 {
  position: absolute;
  top: 0;
  right: 0;
  width: 18rem;
  height: 18rem;
  background: hsl(235, 85%, 65%, 0.1);
  border-radius: 50%;
  filter: blur(80px);
}

.bg-glow-2 {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24rem;
  height: 24rem;
  background: hsl(260, 65%, 55%, 0.1);
  border-radius: 50%;
  filter: blur(80px);
}

.steps-grid {
  display: grid;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
  position: relative;
  z-index: 10;
}

@media (min-width: 1024px) {
  .steps-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  position: relative;
  padding: var(--spacing-xl);
  border: 1px solid hsl(215, 20%, 88%, 0.5);
  background: hsl(0, 0%, 100%, 0.8);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-2xl);
  transition: var(--transition-smooth);
  height: 100%;
}

.step-card:hover {
  box-shadow: var(--shadow-strong);
  border-color: hsl(235, 85%, 65%, 0.3);
}

.step-number {
  position: absolute;
  top: var(--spacing-xl);
  right: var(--spacing-xl);
  font-size: 2.5rem;
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: hsl(215, 15%, 50%, 0.3);
}

.step-icon {
  padding: var(--spacing-sm);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-bottom: var(--spacing-lg);
  width: fit-content;
}

.step-title {
  font-size: 1.25rem;
  color: var(--foreground);
  margin-bottom: var(--spacing-md);
}

.step-description {
  color: var(--muted-foreground);
  margin-bottom: var(--spacing-lg);
}

.step-features {
  list-style: none;
}

.step-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.check-icon {
  width: 1rem;
  height: 1rem;
  color: var(--success);
  flex-shrink: 0;
}

.step-arrow {
  position: absolute;
  top: 50%;
  width: 35px;
  height: 35px;
  right: -1rem;
  text-align: center;
  transform: translateY(-50%);
  background-color: var(--primary);
  color: white;
  padding: var(--spacing-sm);
  border-radius: 50%;
  box-shadow: var(--shadow-glow);
  z-index: 10;
}

@media (max-width: 1023px) {
  .step-arrow {
    display: none;
  }
}

.step-card:last-child .step-arrow {
  display: none;
}

.results-card {
  background: var(--gradient-card);
  border: 1px solid hsl(215, 20%, 88%, 0.5);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  text-align: center;
  backdrop-filter: blur(10px);
}

.results-grid {
  display: grid;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

@media (min-width: 768px) {
  .results-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.result-item {
  text-align: center;
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.result-icon {
  width: 1.25rem;
  height: 1.25rem;
}

.result-number {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
}

.result-label {
  color: var(--muted-foreground);
}

.results-cta {
  max-width: 28rem;
  margin: 0 auto;
}

.results-title {
  font-size: 1.25rem;
  color: var(--foreground);
  margin-bottom: var(--spacing-md);
}

/* Testimonials Section */
.testimonials-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--background);
}

.testimonials-grid {
  display: grid;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

@media (min-width: 1024px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial-card {
  padding: var(--spacing-lg);
  border: 1px solid hsl(215, 20%, 88%, 0.5);
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-2xl);
  transition: var(--transition-smooth);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-strong);
  border-color: hsl(235, 85%, 65%, 0.3);
}

.testimonial-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.testimonial-profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.avatar {
  width: 3rem;
  height: 3rem;
  background: var(--gradient-primary);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  border: 2px solid hsl(235, 85%, 65%, 0.2);
}

.testimonial-name {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  color: var(--foreground);
}

.testimonial-role {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.testimonial-company {
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 500;
}

.testimonial-rating {
  display: flex;
  gap: 2px;
  margin-bottom: var(--spacing-md);
}

.testimonial-quote {
  position: relative;
  margin-bottom: var(--spacing-lg);
}

.quote-icon {
  position: absolute;
  top: -0.5rem;
  left: -0.5rem;
  width: 2rem;
  height: 2rem;
  color: hsl(235, 85%, 65%, 0.2);
}

.testimonial-quote p {
  font-style: italic;
  color: var(--muted-foreground);
  padding-left: var(--spacing-lg);
}

.testimonial-results {
  display: grid;
  gap: var(--spacing-sm);
}

.result-metric {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm);
  background-color: hsl(235, 85%, 65%, 0.05);
  border-radius: var(--radius-lg);
}

.metric-label {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.metric-value {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  color: var(--primary);
}

.company-logos {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.company-logos-text {
  color: var(--muted-foreground);
  margin-bottom: var(--spacing-xl);
}

.logos-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xl);
  opacity: 0.6;
}

.company-logo {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--muted-foreground);
}

.testimonials-cta {
  text-align: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  color: white;
}

.cta-title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  margin-bottom: var(--spacing-md);
}

.cta-subtitle {
  color: hsl(0, 0%, 100%, 0.9);
  margin-bottom: var(--spacing-lg);
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}

.cta-stats {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
  justify-content: center;
}

@media (min-width: 640px) {
  .cta-stats {
    flex-direction: row;
  }
}

.cta-stat {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: hsl(0, 0%, 100%, 0.9);
  font-weight: 500;
}

/* Pricing Section */
.pricing-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--background);
}

.pricing-grid {
  display: grid;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

@media (min-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  position: relative;
  padding: var(--spacing-xl);
  border: 1px solid hsl(215, 20%, 88%, 0.5);
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-2xl);
  transition: var(--transition-smooth);
}

.pricing-card:hover {
  box-shadow: var(--shadow-strong);
  border-color: hsl(235, 85%, 65%, 0.3);
}

.pricing-card-popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
  transform: scale(1.05);
}

.popular-badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gradient-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius-lg);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.plan-name {
  font-size: 1.5rem;
  color: var(--foreground);
  margin-bottom: var(--spacing-md);
}

.plan-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.price-currency {
  font-size: 1.125rem;
  color: var(--muted-foreground);
}

.price-amount {
  font-family: 'Poppins', sans-serif;
  font-weight: 700;
  font-size: 3rem;
  color: var(--primary);
}

.price-period {
  font-size: 1.125rem;
  color: var(--muted-foreground);
}

.plan-description {
  color: var(--muted-foreground);
  text-align: center;
}

.plan-features {
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.plan-features li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
  font-size: 0.875rem;
}

.plan-features li:not(.feature-unavailable) {
  color: var(--foreground);
}

.feature-unavailable {
  color: var(--muted-foreground);
  opacity: 0.5;
}

.x-icon {
  width: 1rem;
  height: 1rem;
  color: var(--muted-foreground);
  flex-shrink: 0;
}

.plan-cta {
  width: 100%;
  margin-bottom: var(--spacing-md);
}

.plan-footer {
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

.pricing-faq {
  max-width: 48rem;
  margin: 0 auto;
}

.faq-title {
  text-align: center;
  font-size: 1.5rem;
  color: var(--foreground);
  margin-bottom: var(--spacing-xl);
}

.faq-grid {
  display: grid;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .faq-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.faq-item {
  text-align: center;
}

.faq-question {
  font-weight: 600;
  color: var(--foreground);
  margin-bottom: var(--spacing-sm);
}

.faq-answer {
  font-size: 0.875rem;
  color: var(--muted-foreground);
}

/* FAQ Section */
.faq-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--background);
}

.faq-accordion {
  max-width: 64rem;
  margin: 0 auto var(--spacing-3xl);
}

.faq-item {
  border: 1px solid hsl(215, 20%, 88%, 0.5);
  border-radius: var(--radius-lg);
  background: var(--gradient-card);
  backdrop-filter: blur(10px);
  margin-bottom: var(--spacing-md);
  overflow: hidden;
  transition: var(--transition-smooth);
}

.faq-item:hover {
  border-color: hsl(235, 85%, 65%, 0.3);
}

.faq-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg);
  background: none;
  border: none;
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  color: var(--foreground);
  text-align: left;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.faq-trigger:hover {
  color: var(--primary);
}

.faq-trigger[aria-expanded="true"] {
  color: var(--primary);
}

.faq-trigger[aria-expanded="true"] .faq-icon {
  transform: rotate(180deg);
}

.faq-icon {
  width: 1.25rem;
  height: 1.25rem;
  transition: var(--transition-smooth);
  flex-shrink: 0;
}

.faq-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.faq-content.active {
  max-height: 500px;
}

.faq-content p {
  padding: 0 var(--spacing-lg) var(--spacing-lg);
  color: var(--muted-foreground);
  line-height: 1.7;
}

.support-cta {
  text-align: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  color: white;
}

.support-icon {
  margin: 0 auto var(--spacing-md);
  opacity: 0.9;
}

.support-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
}

.support-subtitle {
  color: hsl(0, 0%, 100%, 0.9);
  margin-bottom: var(--spacing-lg);
  max-width: 32rem;
  margin-left: auto;
  margin-right: auto;
}

.support-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-lg);
}

@media (min-width: 640px) {
  .support-buttons {
    flex-direction: row;
    gap: var(--spacing-md);
  }
}

.support-contact {
  padding-top: var(--spacing-lg);
  border-top: 1px solid hsl(0, 0%, 100%, 0.2);
}

.support-contact p {
  color: hsl(0, 0%, 100%, 0.8);
  font-size: 0.875rem;
}

/* Footer */
.footer {
  background-color: var(--foreground);
  color: hsl(0, 0%, 100%);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
  color: hsl(0, 0%, 100%, 0.8);
}

.footer-main {
  display: grid;
  gap: var(--spacing-3xl);
  margin-bottom: var(--spacing-3xl);
}

@media (min-width: 1024px) {
  .footer-main {
    grid-template-columns: 1fr 2fr 1fr;
  }
}

.footer-brand {
  max-width: 20rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.footer-description {
  margin-bottom: var(--spacing-lg);
  line-height: 1.6;
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  background-color: hsl(0, 0%, 100%, 0.1);
  border-radius: 50%;
  color: hsl(0, 0%, 100%, 0.8);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.social-link:hover {
  background-color: var(--primary);
  color: white;
  transform: translateY(-2px);
}

.social-icon {
  width: 1.25rem;
  height: 1.25rem;
}

.footer-links {
  display: grid;
  gap: var(--spacing-xl);
}

@media (min-width: 640px) {
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer-links {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-column {
  min-width: 0;
}

.footer-title {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  color: white;
  margin-bottom: var(--spacing-md);
}

.footer-list {
  list-style: none;
}

.footer-list li {
  margin-bottom: var(--spacing-sm);
}

.footer-link {
  color: hsl(0, 0%, 100%, 0.7);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition-smooth);
}

.footer-link:hover {
  color: var(--primary);
}

.footer-newsletter {
  max-width: 20rem;
}

.newsletter-description {
  margin-bottom: var(--spacing-md);
  font-size: 0.875rem;
}

.newsletter-form {
  margin-bottom: var(--spacing-md);
}

.newsletter-input-wrapper {
  display: flex;
  background-color: hsl(0, 0%, 100%, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xs);
}

.newsletter-input {
  flex: 1;
  background: none;
  border: none;
  color: white;
  padding: var(--spacing-sm);
  font-size: 0.875rem;
}

.newsletter-input::placeholder {
  color: hsl(0, 0%, 100%, 0.5);
}

.newsletter-input:focus {
  outline: none;
}

.newsletter-btn {
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: var(--spacing-sm);
  cursor: pointer;
  transition: var(--transition-smooth);
}

.newsletter-btn:hover {
  background-color: var(--primary-dark);
}

.newsletter-privacy {
  font-size: 0.75rem;
  color: hsl(0, 0%, 100%, 0.6);
}

.footer-bottom {
  border-top: 1px solid hsl(0, 0%, 100%, 0.1);
  padding-top: var(--spacing-xl);
}

.footer-bottom-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 768px) {
  .footer-bottom-content {
    flex-direction: row;
  }
}

.footer-copyright {
  font-size: 0.875rem;
  color: hsl(0, 0%, 100%, 0.6);
}

.footer-legal {
  display: flex;
  gap: var(--spacing-lg);
}

.legal-link {
  font-size: 0.875rem;
  color: hsl(0, 0%, 100%, 0.6);
  text-decoration: none;
  transition: var(--transition-smooth);
}

.legal-link:hover {
  color: var(--primary);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--muted);
}

::-webkit-scrollbar-thumb {
  background: hsl(215, 15%, 50%, 0.3);
  border-radius: var(--radius-lg);
}

::-webkit-scrollbar-thumb:hover {
  background: hsl(215, 15%, 50%, 0.5);
}

/* Responsive Design */
@media (max-width: 767px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .container {
    padding: 0 var(--spacing-md);
  }

  .hero-section {
    padding: calc(80px + var(--spacing-xl)) 0 var(--spacing-xl);
  }

  .floating-engagement,
  .floating-students {
    position: static;
    margin: var(--spacing-md) auto;
    display: inline-block;
  }
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Focus States */
.btn:focus,
.form-input:focus,
.newsletter-input:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
  :root {
    --muted-foreground: hsl(215, 15%, 35%);
    --border: hsl(215, 20%, 70%);
  }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .floating-element {
    animation: none;
  }
}